Prof Brian Ripley
2001-Jan-30 16:00 UTC
[R] Link with C code (compiled code under Windows)
> From: "Patrick Wendel" <p.wendel at ic.ac.uk> > Date: Tue, 30 Jan 2001 13:05:23 -0000 > > > I am using cygwin (latest version) and I managed to generate a dll partly > with rcmd shlib although there was a problem with both the resouce file (IRcmd SHLIB, perhaps?> had to remove "FILEOS VOS__WINDOWS32") and the command line for gcc > (--shared is not supported for instance).As all recent cygwins have supported --shared, I don''t know what to say. Set up correctly, it works out of the box, although there are warnings in the documentation that it is not a preferred route. Also HAVE_SHARED is a documented flag. You did notice that as you edited MkRules, didn''t you?> So I would like to know which compiler/environment you advise to use for > windows OS.That is clearly documented in the sources and rw1021sp.zip, in files INSTALL and readme.packages, for example.> Then I could load the library in R but couldn''t call any method. > > Is there a function to know which functions have been successfully imported > ?None. DLLs don''t work like that: they are probed for symbols as needed. You can use pedump to explore whether the symbols are exported correctly.> I''ve also done the dll in other ways (using gcc and dlltool as explained on > their website and also using VC++) but I had the same result.May be it is not the DLL. Maybe it is your C code or what you are trying to do with it?> I suppose I missed something in the dll creation but I cannot see what. > > Any idea ?Try (1) reading the R documentation (2) making a simple example (e.g. package windlgs) to see if your compiler system is working. BDR BTW, Rcmd SHLIB in 1.2.1 using some make.exe''s fails. Change SOURCES in bin/SHLIB and src/gnuwin32/MakeDll to CFSOURCES to avoid this. (Some make.exe''s pass down macros, some do not .... It worked with the make I first used, but not the latest one.) -- Brian D. Ripley, ripley at stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272860 (secr) Oxford OX1 3TG, UK Fax: +44 1865 272595 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._